Growing Grapes in Nyeri

Soil suitability analysis based on Nyeri's nutrient profile

Grapes can be grown in Nyeri County, but the soil scores 57/100 and needs targeted management to reach full potential. At an average pH of 5.23 the soil is moderately acidic, below Grapes's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is phosphorus and potassium — measured at N 1.09 g/kg, P 15.5 mg/kg, K 192 mg/kg against this crop's medium/high/high demand — so the fertilizer plan below prioritises closing those deficits. Grapes prefers loam soils, while Nyeri is largely clay, so drainage and organic-matter management matter more here. Grapes's full potential is about 8,000 kg/acre (~KES 1,200,000/acre at KES 150/kg), but at Nyeri's 57/100 suitability a realistic target here is closer to 5,700 kg/acre (~KES 855,000/acre) unless the constraints above are addressed.